6.1 UNFCCC – NAI SOFTWARE Sector: Land-Use Change and Forestry Practical Aspects and Exercises CGE...

6.1

UNFCCC – NAI SOFTWARE Sector: Land-Use Change and Forestry

Practical Aspects and Exercises

CGE

Greenhouse Gas Inventory Hands-on Training Workshop

6.2

CONTENT

Details on use of the UNFCCC-NAI Software to calculate and report GHG emissions in theLand Use, Land-Use Change and Forestry sector.

Practical exercises (to be solved by the participants after the presentation).

6.3

BACKGROUND

The decision trees in the IPCC good practice guidance for land use, land-use change and forestry (GPG2003) are used to choose a good practice method that suits national circumstances.

The UNFCCC-NAI Software contains, basically, the methods of lesser complexity that countries can use to prepare their inventories.

However, in principle, the software can be used to report the estimated emissions independently of the complexity of method used (Tier 2, 3, etc).

6.4

LUCF Sector: IPCC 1996 Guidelines

Methodology

Can be implemented at three different levels of complexity and geographic scale:

A simple first order approach based on aggregate default data (default approach)

More accuracy can be achieved by substituting country-specific values for general defaults.

6.5

LULUCF Sector: GPG2003

Use of GPG2003 (and the higher Tiers) for GHG inventories is encouraged to reduce the uncertainty of emission estimates.

GPG2003 contains good practices for the LULUCF Sector (not covered in GPG2000):

overcomes many of the problems detected in the use of the IPCC Guidelines to estimate LUCF emissions

updates information necessary for calculations(AD, EF and other emission parameters).

6.6


Methodology

Uses the same basic conceptual approach as in the IPCC Guidelines but with some important inclusions, updates and improvements:

Provides three hierarchical Tiers of methods (nearly corresponding to the three levels of complexity of the IPCC Guidelines)

Land-use category base approach (forest land, cropland, grassland, wetland, settlement and others)

A division is also made based on the status and recent history of the land use: a) lands that begin and end an inventory period in the same use,b) lands converted to other land use.

6.7


Methodology Association of above- and below-ground carbon

pools. Provides key category analysis approach (land-use

category based). Not directly applicable to the categories 5A to 5D in IPCC Guidelines.

Provides decision trees.

6.8


Methodology: Provides three methodological TiersTier 1 Employs the basic method provided in IPCC Guidelines

(Workbook) and the default EF (updated in GPG2003). It includes other land uses and pools whose emissions or removals

were assumed as default ‘zero’.Tier 2 Can use the same approach as Tier 1 but applies EF and AD which

are defined by the country. Can also apply stock change methodologies based on country-

specific data.Tier 3 Higher order methods including models and inventory

measurements.

6.9

LULUCF Sector: IPCC Software and GPG2003

Calculation of emissions using GPG2003, in this sector, is not completely possible using the IPCC Software (it was not designed for this).

Using the software with the IPCC Guidelines default approach it is not possible to cover all the land categories and carbon pools included in GPG2003.

6.10

LULUCF Sector: UNFCCC-NAI Software and GPG2003

A new module (Module 5B) has been added to the present software so that inventory compilers can apply the more recent methodologies developed by the IPCC to the Land Use, Land-Use Change and Forestry sector, as described in GPG2003.

The UNFCCC encourages the use of these methodologies, although the user may still choose to use the outdated Module 5 Land Use

6.11

LULUCF Sector: UNFCCC-NAI Software and GPG2003

In the current software you have the choice between two alternatives.

For preparing a complete inventory it is necessary to use either of the modules, but not both.

6.12

LULUCF Sector: UNFCCC-NAI Software

When you open Module 5 you will be prompted with a dialogue box asking whether you would like to use the IPCC Good Practice Format (GPG2003) for the LULUCF Sector.

6.13


If you would like to use the IPCC Good Practice Format (GPG2003) choose ‘YES’ in the dialogue box. Selecting ‘Yes’ opens the summary table of Module 5B.

6.14


If you want to use the IPCC Guidelines Format (IPCC Guidelines) choose ‘NO’ in the dialogue box. Selecting ‘No’ opens Module 5, the Land-Use Change and Forestry module as described in the IPCC Guidelines.

6.15


The main differences introduced in GPG2003 are the following:

1. Inclusion of additional land categories.

2. Inclusion of additional carbon pools.

3. Inclusion of additional non-CO2 gases.

4. Estimation of biomass increment and losses in each land category.

6.16


5. Linking of biomass and soil carbon for each land category.

6. There is no one-to-one linkage or correspondence between the IPCC Guidelines categories (5A to 5E) and GPG2003 land categories.

7. Methods given for all carbon pools: AGB, BGB, dead organic matter and soil carbon and all non-CO2 gases (in IPCC Guidelines methods were provided only for AGB and soil carbon).

6.17

LULUCF Sector: GPG2003Worksheets and Reporting Tables

1. The equations to estimate emissions and removals of CO2 and non-CO2 greenhouse gas from the different categories in GPG2003 are translated into new default Worksheets and Reporting Tables (designed using the same format as in the IPCC Guidelines wherever possible).

2. Resulting estimates of emissions and removals in the Worksheets are compiled in the Compilation Worksheets and finally in the Reporting Tables.

6.18

LULUCF Sector: GPG2003Worksheets and Reporting Tables

3. All users using GPG2003 should report their inventory information in the format prescribed by the Reporting Tables.

4. Includes a Tool for Estimation of Soil Carbon Stock Change.

6.19


Worksheets

Worksheets are presented in modules and sub-modules. Each module corresponds to specific land-use category.

A module is divided into two sub-modules to distinguish between those lands that remain in the same land-use category and those lands converted to other land-use category.

Each sub-module consists of worksheets, which are mainly grouped into: living biomass worksheets; dead organic matter worksheets; soil worksheets (further sub-grouped into mineral and organic soils); and non-CO2 GHG emissions worksheets.

6.20


Worksheets Module Submodule Worksheets

Forest Land Forest Land Remaining Forest Land FL-1a to FL-1d (13)

Land Converted to Forest Land FL-2a to FL-2d (7)

Cropland Cropland Remaining Cropland CL-1a to CL-1c4 (9)

Land Converted to Cropland CL-2a to CL-2d (9)

Grassland Grassland Remaining Grassland GL-1a to GL-1d (10)

Land Converted to Grassland GL-2a to GL-2d (7)

Wetland Wetland Remaining Wetland. WL-1c to WL-1d (5)

Land Converted to Peat Extraction WL-2a1 to WL-2C- (2)

Land Converted to Flooded Land (Reservoirs)

WL-2a2 (1)

Settlements Settlements Remaining Settlements SL -1a (1)

Land Converted to Settlements SL-2a (1)

Other Land Land Converted to Other Land OL-2a to OL-2c (3)

6.21


Worksheets Example:

Module: Forest Land

Sub-module: Forest Land Remaining Forest Land

Worksheets

FL-1as1 to FL-1as4

Annual change in carbon stocks in living biomass (includes above- and below-ground biomass)

FL-1bs1 to FL-1bs3

Annual change in carbon stocks in dead organic matter (dead wood and litter)

FL-1c1s1 to FL-1c1s2

Annual change in carbon stocks in mineral soils

FL-1c2s1 Annual change in carbon stocks in organic soils

FL-1c3s1 Annual change in carbon stocks in soils (summary worksheet)

FL-1ds1 Non-CO2 emissions from vegetation fires

6.22

WORKSHEET FL-1a_1 OF 4

ANNUAL CHANGE IN CARBON STOCKS IN LIVING BIOMASS (INCLUDES ABOVE- AND

BELOW-GROUND BIOMASS)

MODULE: FOREST LAND; SUBMODULE: FOREST LAND REMAINING FOREST LAND

6.23

LULUCF Sector: GPG2003Compilation Worksheets and Reporting Tables

Compilation Worksheets

Table 3A.2.2A Compilation Worksheets for Reporting CO2 Emissions and Removals

Table 3A.2.2B Compilation Worksheets for Reporting non-CO2 Emissions

Reporting Tables

3A.2.1A Reporting Table for Emissions and Removals of CO2 and Non-CO2 Gases from LULUCF

3A.2.1B Reporting Table for Emissions and Removals of CO2 and Non-CO2 Gases due to Conversion of Forest Land and Grassland to Other Land Categories

6.26

REPORTING TABLE

(IN THE SOFTWARE INCLUDED IN THE WORKSHEET SUMMARY)

6.27

IN OVERVIEW THERE IS ONE OPTIONAL SECTORAL REPORT TABLE FOR LULUCF FOR COUNTRIES USING

GPG2003

6.28

UNFCCC – NAI Software. LULUCF Sector: GPG2003Exercise 5.1: Changes in carbon stocks in the category Forest Land

Remaining Forest Land (FF) (1)

Country A: Year: 2000.

Data. The Environment Agency has provided the available data for land use,

land-use change for the entire country for the years 1981 and 2000. The representation of land areas was obtained using the broad

categories defined in GPG2003 and approach 2 ‘Survey of Land Use and Land-Use Change’.

The following data relating to forest area for the category Forest Land Remaining Forest Land were submitted :

a) Forest land (managed) in 1981 (14 Mha)

b) Forest land (managed) in 2000 (13 Mha)

6.29



Country A: Year: 2000. Other data: Subdivision of forest area (forest land managed) for reporting year (2000) according to forest type and climatic zones (Mha)

Forest Type Forest Area 1981 Forest Area 2000

Wet 3 3

Moist with Long Dry Season 5 4.5

Dry 3 2.5

Mountain Moist 3 3

Total 14 13



Country A: Year: 2000. Other data. (e.g. from Asia, continental conditions)

BEF 1 Annual Net Increment

IV (m3 ha-1 yr-1)

Root–Shoot Ratio

R

Wet 1.7 32 0.24

Moist with Long Dry Season

1.5 35 0.24

Dry 1.1 10 0.27

Mountain Moist 1.5 25 0.24

Basic Wood Density

(D) (tonne d.m. per m3 fresh)

Annually Extracted Volume of Roundwood

(H) (m3yr-1)

BEF 2

Wet 0.70 0 3.4


0.64 8000 3.4

Dry 0.4 7000 1.3

Mountain Moist 0.72 0 3.4

UNFCCC – NAI Software. LULUCF Sector: IPCC GPG2003Exercise 5.1: Changes in carbons stocks in the category Forest Land


Country A: Year: 2000. Other data. Carbon fraction of dry matter (default 0.5)

Fraction Left to Decay

(fBL)

Annual Volume of Fuelwood Gathering

(m3 yr-1) (FG)

Forest Areas Affected by Disturbances

(ha yr-1)

Wet 0 0 0


0.4 0 200

Dry 0.4 4000 300

Mountain Moist 0 0 0

Average Biomass Stocks (Bw)

(tonne d.m. ha-1)

Area of Drained Organic Forest Soils

(ha)

EF CO2 (Drainage)

Wet 275 1000 1.36


127 -

Dry 60 -

Mountain Moist 122 -

6.32



Tasks

Using the UNFCCC-NAI Software, GPG2003 and the Tier approach:

1. Calculate CO2 emissions or removals from changes in carbon stocks in the category Forest Land Remaining Forest Land (FF).

2. Incorporate the emission values obtained in the sheet ‘Summary’ from LULUCF and in the Sectoral Report Table 5B.

3. Print the worksheets used and the Sectoral Report Table.

6.33



I) Annual change in carbon stocks in living biomass (above- and below-ground biomass)

Steps

1. Open the software and select LULUCF from the GPG2003.

2. Go to the worksheet FL-1a Sheet 1 of 4.

3. Incorporate the land use subdivision for sub-categories according to forest type and climatic zones in the country. Use the blue button to introduce the sub-categories in the sheet.

4. In column A enter the area of forest lands remaining forest lands for reporting year (ha).

5. In column B enter the average annual net increment in volume suitable for industrial processing (m3 ha-1yr-1) (IV).

6. In column C enter the basic wood density (D) (tonne d.m. per m3 fresh).

7. In column D enter the Biomass Expansion Factor (BEF1).

8. In column E the software calculates the average annual above-ground biomass increment (Gw) (tonne d.m. ha-1 yr-1).

6.34



Steps

9. Go to worksheet FL-1a Sheet 2 of 4.

10. In column H enter the carbon fraction of dry matter (default is 0.5) (tonne C tonne d.m.-1).

11. In column I the software calculates the annual increase in carbon due to biomass increment CFFC (63,0804.3 tonne C yr-1).

12. In column J enter the volume of roundwood extracted annually (m3yr-1).

13. In column K enter the biomass density D (tonne d.m. m-3 fresh volume).

14. In column L enter the Biomass Expansion Factor (BEF2).

15. In column M enter the fraction of biomass left to decay in forest (fBL).

6.35

UNFCCC – NAI Software. LULUCF Sector: IPCC GPG2003Exercise 5.1: Changes in carbon stocks in the category Forest Land


Steps 16. Go to worksheet FL-1a Sheet 3 of 4.17. In column N the software calculates the annual carbon loss due to

commercial fellings (Lfellings) (6,314.4 tonne C yr-1).18. In column O enter the annual volume of fuelwood gathering (FG)

(m3yr-1).19. In column P enter the biomass density (D) (tonne d.m. m-3 fresh

volume).20. In column Q enter the Biomass Expansion Factor (BEF2).21. In column R the software calculates the annual carbon loss due to

fuelwood gathering (Lfuelwood) (1,040 tonne C yr-1).22. In column S enter the forest areas affected by disturbances

(Adisturbances) (ha yr-1).23. In column T enter the average biomass stock of forest areas (Bw)

(tonne d.m. ha-1).

6.36



Steps

24. Go to worksheet FL-1a Sheet 4 of 4.

25. In column U enter the fraction of biomass left to decay in forest (fBL).

26. In column V the software calculates the annual other losses of carbon (Lother losses) (13,860 tonne C yr-1).

27. In column W the software calculates the annual decrease in carbon due to biomass loss CFFL) (21,214.4 tonne C yr-1).

28. In column X the software calculates the annual change in carbon stocks in living biomass CFFLB (60,9589.9 tonne C yr-1).

6.37



II) Annual change in carbon stocks in dead organic matter (dead wood and litter)

Steps1. Go to worksheet FL-1b Sheet 1 of 3.

Tier 1 assumes that the net change in carbon in dead wood and litter is zero.

6.38



III) Annual change in carbon stocks in mineral soils

Steps

1. Go to worksheet FL-1C1 Sheet 1 of 2.

Tier 1 assumes that the net change in carbon in mineral soils for forest land remaining forest land is zero.

6.39



IV) Annual change in carbon stocks in organic soils

Steps

1. Go to worksheet FL-1C2 Sheet 1 of 1.

2. In column A enter the area of drained organic forest soils (ADrained) (ha).

3. In column B enter the EF for CO2 from drained organic forest soils (EFDrainage) (tonne C ha-1yr-1).

4. In column C the software calculates the CO2 emissions from drained organic forest soils CFFOrganic (1,360 tonne C yr-1).

6.40



V) Annual change in carbon stocks in soils (summary worksheet)

Steps

1. Go to worksheet FL-1C3 Sheet 1 of 1 to see the annual change in carbon stocks in soils CFFSoils (1,360 tonne C yr-1).

6.41



VI) Reporting Table for Emissions and Removals of CO2 and non-CO2 gases from LULUCF in the reporting year.

Steps

1. Go to the sheet Summary for LULUCF and enter manually the CO2 emissions/removals from the annual change in carbon stocks (in Gg CO2) in living biomass, dead organic matter and soils for FF.

2. Go to Table 5Bs1 Sectoral report for LULUCF and enter manually the CO2 emissions/removals obtained for FF in the sheet Summary for the Module 5B (LULUCF) (-2,240.15 Gg CO2). Make the same operation for the Summary of the inventory (Tables 7A and 7B).

Note: Deliberately, the results from the worksheets are not linked automatically with the summary tables because: a) in the worksheets the headers are only emissions/removals whereas the summary tables need to report emissions and removals separately; b) Summary Table 7B uses the structure of the IPCC Guidelines whereas Table 5B uses the new structure. A “mapping back” is needed.

6.42

Incorporate the land use subdivision for sub-categories according to forest type and climatic zones in the country

Use the blue button to introduce the sub-categories in the sheet.

6.43

ANNUAL INCREASE IN CARBON DUE TO BIOMASS INCREMENT

6.44

ANNUAL CARBON LOSS DUE TO COMMERCIAL FELLINGS

ANNUAL CARBON LOSS DUE TO FUELWOOD GATHERING

6.45

ANNUAL DECREASE IN CARBON DUE TO BIOMASS LOSS

ANNUAL CHANGE IN CARBON STOCKS IN LIVING BIOMASS

6.46

TIER 1 ASSUMES THAT THE NET CHANGE IN CARBON IN DEAD WOOD AND LITTER IS ZERO

6.47

TIER 1 ASSUMES THAT THE NET CHANGE IN CARBON IN MINERAL SOILS FOR FOREST LAND REMAINING FOREST LAND IS ZERO

6.48

CO2 EMISSIONS FROM DRAINED ORGANIC FOREST SOILS

6.49

ANNUAL CHANGE IN CARBON STOCKS IN SOILS

6.50

ANNUAL CHANGE IN CARBON STOCKS

CO2 EMISSIONS/REMOVALS IN FF

6.51

LUCF Sector: UNFCCC – NAI Software,

IPCC 1996 Guidelines

Sector 5: Land-Use Change and Forestry Source Categories and Subcategories Worksheets 5A. Changes in Forest and Other Woody Biomass Stocks 5-1s1 to 5-1s3 5B. Forest and Grassland Conversion. CO2 From Biomass 5-2s1 to 5-2s2 5B. Forest and Grassland Conversion. On-site Burning of Forests: Emissions of Non-CO2 Trace Gases

5-3s1

5C. Abandonment of Managed Lands 5-4s1 to 5-4s3 5D. CO2 Emissions and Removals from Soil 5-5s1 to 5-5s4 (#) Quantity of sheets

Changes in the worksheets with respect to the IPCC Software

6.52

LUCF Sector: UNFCCC – NAI Software andIPCC 1996 Guidelines General Suggestions

For countries using the IPCC Guidelines.General Suggestions:In the UNFCCC - NAI Software, Module 5: Use updated AD, EF and other parameters from

GPG2003. Use country-specific names/categories of

forest/plantations.

6.53

UNFCCC – NAI Software. LUCF Sector: IPCC Guidelines5A Changes in Forest and Other Woody Biomass Stock

SECTOR: Land-Use Change and Forestry (1)

UNFCC - NAI

SOFTWARE

MAIN CATEGORIES

Tier 1: Worksheets

Remarks

5A Changes in Forest and Other Woody Biomass Stock

5-1s1 to 5-1s3 IPCC 1996 GL -This submodule deals with the emissions or removals of carbon (and CO2) due to changes in forests and other woody biomass stocks affected by human activity. To calculate the net carbon uptake or release: Step 1: Estimate total biomass carbon uptake from the annual increment of biomass in plantations, forests and the growth of trees in villages, farms and urban areas (it requires data on the area of forest/biomass stocks by type, number of dispersed trees (non-forest) and the annual growth rate). Step 2: Estimate total biomass consumption from the total biomass removed in commercial harvest and the total fuelwood consumed, other wood uses and the wood removed from forest clearing (burned off site). Step 3: Convert wood harvested to carbon removed. Step 4: Estimate the net annual amount of carbon uptake or release. Note: The names of type of forest/plantations category in a country maybe different for the categories defined in the IPCC software. There are not many difficulties to change, in the software, those categories for the country-specific categories. Suggestions: 1) If the number of country specific categories is > 18, insert additional rows, the corresponding calculation formulas and links or 2) merge smaller forest/plantations categories. Only in the case that the number of categories is> 18 some difficulty arises. Remark for reporting purposes: Emission (+) and removals (-).

6.54

UNFCCC – NAI Software. LUCF Sector: IPCC Guidelines Exercise 5.2: Changes in Forest and Other Woody Biomass Stock (1)

Country A: Year: 2000. Worksheet 5-1s1 to 5-1s3Data. The Ministry of Agriculture provided the following information for the inventory:

Area (kha)

(managed forests)

Annual biomass

increment (tdm/ha/yr)

Carbon fraction of dry matter

Protection forest Old growth 805 1.5 0.5

Mossy 1070 3 0.5

Closed pine forest 126 3 0.5

Open pine forest 108 3 0.5

Mangrove 121 2 0.5

Sub-marginal 497 3 0.5

Other forests Residual dipterocarp 2963 5.2 0.45

Tree plantations 730 8.9 0.45

6.55


Country A: Year: 2000. Worksheet 5-1s1 to 5-1s3Other data provided:

Amount of Commercial Harvest (1000 m3 roundwood) 600

Biomass Conversion/Expansion Ratio 0.95 tdm/m3

Total fuelwood consumed (including wood for charcoal production)

150 kt

Total other wood use 20 kt dm

Wood removed from forest clearing

(quantity of biomass burned off-site)

Information NA

Disperse (non-forest) trees Information NA

6.56


Tasks Using the UNFCCC - NAI Software:

1. Calculates CO2 emissions or removals.2. Verify the emissions report in the Sectoral and Summary

Tables.3. Fill Table 8A (Overview Table) for the self evaluation of

quality and completeness. 4. Print the worksheet, the Sectoral Summary Table and the

Overview Table (8A) used.

6.57


Steps 1. Open the software and select in the LUCF sector

worksheet 5-1s1.2. Unprotect the worksheet and change the default IPCC

classification to the in-country specific classification of forest/biomass stocks. Protect the worksheet.

3. For each type of biomass stock, enter the Area of Forest/Biomass Stocks in kha in column A. For each type of forest, enter the Annual Growth Rate (in tdm/ha) in column B. The software calculates in column C the annual biomass increment.

4. For each type of biomass stock, enter in column D the Carbon Fraction of Dry Matter. The software calculates in column C the Total carbon Uptake Increment (kt C).

6.58


Steps 5. Go to worksheet 5-1s2 and enter in column F the amount

of Commercial Harvest in thousands of cubic meters. Enter in column G the Biomass Conversion/Expansion Ratio (in tdm/m3). The software calculates in column H the Total Biomass Removed in Commercial Harvest in kt dm.

6. Enter in column I Total fuelwood consumed (including wood for charcoal production) in kt dm.

7. Enter in column J the quantity of Total Other Wood use(kt dm). The software calculates in column K the Total Biomass Consumption.

6.59


Steps

8. Go to worksheet 5-1s3 and enter in column N the Carbon Fraction. The software calculates in column Q the CO2 annual emission (if a negative value) or removal (if a positive value).

Note: For reporting purposes, it is necessary to reverse the sign of these results to express emissions as a positive value and removals as a negative value.

6.60

UNPROTECT THE WORKSHEET AND CHANGE THE IPCC DEFAULT

CLASSIFICATION TO THE COUNTRY-SPECIFIC CLASSIFICATION

TOTAL CARBON UPTAKE INCREMENT (kt C)

6.61

TOTAL BIOMASS CONSUMPTION FROM STOCKS

6.62

CO2 ANNUAL REMOVAL (Gg CO2)

6.63

CO2 REMOVAL IN SECTORAL REPORT TABLE 5s1

6.64

CO2 REMOVAL IN THE SUMMARY REPORT TABLE

6.65

CO2 REMOVAL IN THE SHORT SUMMARY REPORT TABLE

6.66

UNFCCC – NAI Software. LUCF Sector: IPCC Guidelines5B Forest and Grassland Conversion – CO2 From Biomass


UNFCCC -NAI

SOFTWARE

MAIN CATEGORIES

Tier 1: Worksheets

Remarks

5B Forest and Grassland Conversion - CO2 From Biomass

5-2s1 to 5-2s2 IPCC 1996 GL - In the process of conversion: 1) some of the biomass is burned; 2) some biomass remains on the ground where it decays slowly. (The loss of carbon after conversion is calculated in section 5D). To calculate the total annual CO2 release from burning and decay: Step 1: Estimate the annual loss of biomass for each forest/grassland type (information is needed on forest/grassland area converted to cropland and pasture, by type over two time periods: the inventory year and the past 10 years). If figures for biomass before and after conversion are not available, default values are provided. Step 2: Estimate C released by burning AGB on site by forest/grassland type. Step 3: Estimate C released by burning AGB off site by forest/grassland type. Step 4: Estimate CO2 released by decay of AGB (requires average area converted over 10 years for each forest/grassland type). Step 5: Estimate the total annual CO2 release from burning and decay Notes: 1) This category could have incompatibility between the vegetation types included in the software and the national characteristics and classification. In such a case it would be necessary to modify the names in the worksheets. 2) Fraction left to decay + fraction burned on and off site + fraction harvested 1. ≈

6.67

UNFCCC – NAI Software. LUCF Sector: IPCC Guidelines5B Forest and Grassland. On-site Burning of Forests:

Emissions of Non-CO2 Trace Gases


UNFCCC - NAI SOFTWARE

MAIN CATEGORIES

Tier 1: Worksheets

Remarks

5B Forest and Grassland On-site Burning of Forests: Emissions of Non-CO2 Trace Gases

5-3s1 IPCC 1996 GL - CH4 and CO are estimated as ratios to carbon fluxes emitted during burning. - Total nitrogen content is estimated based on the nitrogen-carbon ratio. - N2O and NOx are estimated as ratios to total nitrogen-carbon ratio. To estimate non-CO2 trace gases: Step 1: Estimate Nitrogen released from the Quantity of Carbon released from on-site burning of forest and the Nitrogen-Carbon ratio of biomass burned. Step 2: Estimate non-CO2 trace gases (uses trace gas emissions ratios for open burning of forests).

6.68

UNFCCC – NAI Software. LUCF Sector: IPCC Guidelines5C Abandonment of Managed Lands: Net CO2 Removals


UNFCCC - NAI SOFTWARE

MAIN CATEGORIES

Tier 1: Worksheets

Remarks

5C Abandonment of Managed Lands

5-4s1 to 5-4s3 IPCC 1996 GL - This submodule deals with net CO2 removals in biomass accumulation resulting from the abandonment of managed lands (cultivated lands, pasture). - Abandoned lands regrowing should be entered by type (forest or grassland – in the later the default assumption is that net accumulation above ground is zero). Note: Abandoned area can also continue to degrade or not regrow (should be ignored in this calculation). - Because regrowth rate becomes slower after a time, the periods considered are: 1) land abandoned during the 20 years prior to the inventory year and 2) land abandoned between 20 and 100 years ago. Step 1: Calculate annual carbon uptake in above-ground biomass (land abandoned in the past 20 years). It requires information on total area abandoned and regrowing for the past twenty years and the annual rate of above-ground biomass growth. Step 2: Calculate annual carbon uptake in above-ground biomass (land abandoned for more than 20 years). Step 3: Calculate total CO2 removals from abandoned lands. Notes: 1) This category could have incompatibility between the vegetation types included in the software and the national characteristics and classification. In this case it would be necessary to modify the names in the worksheets.

6.69

UNFCCC – NAI Software. LUCF Sector: IPCC Guidelines5D CO2 Emissions and Removals from Soil


UNFCCC -NAI

SOFTWARE

MAIN CATEGORIES

Tier 1: Worksheets

Remarks

5D. CO2 Emissions and Removals from Soil

5-5s1 to 5-5s4 IPCC 1996 GL The methodology includes estimates of net CO2 emissions (sinks and sources) from three processes. 1) Changes in carbon stored in soil and litter of mineral soils due to changes in land-use practices. 2) CO2 emissions from organic soils converted to agriculture or plantation forestry. 3) CO2 emissions from liming of agricultural soils. Notes: Among the difficulties between the IPCC Guidelines and the software in this category can be mentioned: absence of linkage between biomass carbon and soil carbon for different land categories or vegetation types.

6.70

LULUCF Sector: IPCC GPG 2003 Exercise for Self Evaluation 1: Non – CO2 Emissions

from Forest Fires (I)

Country A: Year: 2000. Data The Environment Agency provided data on the forest area affected by

fires in the country during the year 2000. Also, the Forestry Research Institute provided some parameters relating to the biomass burned during the fires.

Tasks

1. Determine the non-CO2 emissions using the UNFCCC-NAI software and IPCC GPG 2003.

2. Incorporate the emissions values obtained in the Sheet ‘Summary’ from LULUCF and in the Sectoral Report Table 5B.

3. Print the worksheet used and the Sectoral Report Table.

6.71


from Forest Fires (II)

DATA

Forest type Area burned (ha) Mass of available fuel

(kg d.m. ha-1)

Combustion efficiency

Wet 0 275000 0.5

Moist with Long Dry Season 900 127000 0.55

Dry 1500 60000 0.85

Mountain Moist 0 122000 0.5

CH4 EF (g/kg d.m) CO EF (g/kg d.m) N2OEF (g/kg d.m)

Wet 9 130 0.11

Moist with Long Dry Season 9 130 0.11

Dry 9 130 0.11

Mountain Moist 9 130 0.11

NOx EF (g/kg d.m)

Wet 0.7

Moist with Long Dry Season 0.7

Dry 0.7

Mountain Moist 0.7

6.72


from Forest Fires (III)

RESULTS

Non-CO2 GHG Emissions (Gg)

CH4 1.25

CO 18.11

N2O 0.015

NOx 0.1

6.73

Thank you

6.1 UNFCCC – NAI SOFTWARE Sector: Land-Use Change and Forestry Practical Aspects and Exercises CGE...

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Transcript of 6.1 UNFCCC – NAI SOFTWARE Sector: Land-Use Change and Forestry Practical Aspects and Exercises CGE...